oxidation-Reduction Reactions oxidation-reduction reactions (often called \"redo

Question

oxidation-Reduction Reactions oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. In general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number and another element will gain electrons (reduction), thereby decreasing in oxidation number An oxidizing agent is an element or compound in a redox reaction that oxidizes another species and itself gets reduced and is therefore the electron acceptor in the reaction. A reducing agent is an element or compound in a redox reaction that reduces another species and itself gets oxidized and is therefore the electron donor in the reaction As a summary, keep in mind the following Oxidation means an increase in oxidation state and a loss of electrons and involves a reducing agent Reduction means a decrease in oxidation state and a gain of electrons and involves an oxidizing agent

Explanation / Answer

In left hand side Chromium is in +3 oxidation state and right hand side Chromium is in +6 oxidation state.

Chromium is acting as reducing agent which electron donor in the reaction. As shown in the definition Chromium reduce the other species (Cl) in the reaction and itself gets oxidized.

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